I typed without reading the other repsonses. Yes it is PROLUBE, not Protek that is used on damper wires or keypins. It comes in a pump spray which is fast and easy to use on keypins. You should use a Q-tip dipped in prolube to apply to damper wire above and below guide rail. Work dampers up and down a few times and you are set. BTW, if I am not permitted to say that I am a distributor for all Protek Products at Piano Climate Control Supply 1-800-443-7509, then, well, uh.... say so. Thank you, Thank you very much, Steve Cunningham, RPT
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